22103311231 has 4 divisors (see below), whose sum is σ = 22107183192. Its totient is φ = 22099439272.

The previous prime is 22103311229. The next prime is 22103311247. The reversal of 22103311231 is 13211330122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22103311231 - 2¹ = 22103311229 is a prime.

It is a super-2 number, since 2×22103311231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22103311199 and 22103311208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103311201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1927405 + ... + 1938838.

It is an arithmetic number, because the mean of its divisors is an integer number (5526795798).

Almost surely, 2^22103311231 is an apocalyptic number.

22103311231 is a deficient number, since it is larger than the sum of its proper divisors (3871961).

22103311231 is an equidigital number, since it uses as much as digits as its factorization.

22103311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871960.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 22103311231 its reverse (13211330122), we get a palindrome (35314641353).

The spelling of 22103311231 in words is "twenty-two billion, one hundred three million, three hundred eleven thousand, two hundred thirty-one".